Hardware sensors on FreeBSD

[Joshua Isom]

I was wondering if anyone knew of better software for FreeBSD for 
monitoring hardware sensors like CPU temp and fan speeds.  I'm using an 
athlon II x4 and the amdtemp driver seems like it's 20C below what it 
really is but does change.  I've tried using mbmon and it detects the 
it87 chip but it never updates.  It's as if whatever temps it finds at 
boot are what it'll always show, and the fan speed listed is a quarter 
of what it really is.  I tried stress linux to test lmsensors to make 
sure it wasn't a motherboard issue and lmsensors works relatively fine. 
  The voltages are junk but temperature seems accurate and varies with 
the load.  I've yet to see any update about the openbsd sensors 
framework, and I imagine the patch is so old it won't apply cleanly.

Is there a better method to monitor system health under FreeBSD or am I 
stuck with decade old software and a kernel driver that's off by 20C?